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Why does Javascript getYear() return 108?

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3年前关闭。




我有这个JavaScript,可将日期过滤器自动设置为上个月的第一天和最后一天:
$(document).ready(function () {
    $("#DateFrom").datepicker({ dateFormat: 'dd/mm/yy' });
    $("#DateTo").datepicker({ dateFormat: 'dd/mm/yy' });

    var now = new Date();
    var firstDayPrevMonth = new Date(now.getYear(), now.getMonth() - 1, 1);
    var firstDayThisMonth = new Date(now.getYear(), now.getMonth(), 1);
    var lastDayPrevMonth = new Date(firstDayThisMonth - 1);

    $("#DateFrom").datepicker("setDate", firstDayPrevMonth);
    $("#DateTo").datepicker("setDate", lastDayPrevMonth);
});

但是now.getYear()返回111,而不是预期的2011。我是否错过了明显的事情?

最佳答案

https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getYear

10-07 19:42
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